Samsung GX-20 vs Sony A7R
58 Imaging
52 Features
52 Overall
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78 Imaging
73 Features
76 Overall
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Samsung GX-20 vs Sony A7R Key Specs
(Full Review)
- 15MP - APS-C Sensor
- 2.7" Fixed Display
- ISO 100 - 3200 (Bump to 6400)
- Sensor based Image Stabilization
- No Video
- Pentax KAF2 Mount
- 800g - 142 x 101 x 72mm
- Launched January 2008
- Previous Model is Samsung GX-10
(Full Review)
- 36MP - Full frame Sensor
- 3" Tilting Display
- ISO 100 - 25600
- No Anti-Alias Filter
- 1/8000s Maximum Shutter
- 1920 x 1080 video
- Sony E Mount
- 465g - 127 x 94 x 48mm
- Announced February 2014
- Later Model is Sony A7R II
Photography Glossary Samsung GX-20 vs Sony A7R Overview
On this page, we are reviewing the Samsung GX-20 versus Sony A7R, former being a Advanced DSLR while the other is a Pro Mirrorless by brands Samsung and Sony. There is a noticeable difference among the resolutions of the GX-20 (15MP) and A7R (36MP) and the GX-20 (APS-C) and A7R (Full frame) boast different sensor sizing.
Apple Innovates by Creating Next-Level Optical Stabilization for iPhoneThe GX-20 was released 7 years earlier than the A7R and that is a fairly sizable difference as far as camera tech is concerned. Each of the cameras have different body design with the Samsung GX-20 being a Mid-size SLR camera and the Sony A7R being a SLR-style mirrorless camera.
Before going right into a thorough comparison, here is a quick overview of how the GX-20 matches up against the A7R in regards to portability, imaging, features and an overall rating.
Japan-exclusive Leica Leitz Phone 3 features big sensor and new modes Samsung GX-20 vs Sony A7R Gallery
This is a sample of the gallery pictures for Samsung GX-20 & Sony Alpha A7R. The complete galleries are provided at Samsung GX-20 Gallery & Sony A7R Gallery.
Reasons to pick Samsung GX-20 over the Sony A7R
| GX-20 | A7R |
|---|
Reasons to pick Sony A7R over the Samsung GX-20
| A7R | GX-20 | |||
|---|---|---|---|---|
| Announced | February 2014 | January 2008 | Fresher by 73 months | |
| Display type | Tilting | Fixed | Tilting display | |
| Display dimensions | 3" | 2.7" | Larger display (+0.3") | |
| Display resolution | 1230k | 230k | Crisper display (+1000k dot) |
Common features in the Samsung GX-20 and Sony A7R
| GX-20 | A7R | |||
|---|---|---|---|---|
| Focus manually | Dial exact focusing | |||
| Selfie screen | Neither provides selfie screen | |||
| Touch display | Neither provides Touch display |
Samsung GX-20 vs Sony A7R Physical Comparison
When you are looking to carry your camera often, you're going to have to factor its weight and size. The Samsung GX-20 provides exterior dimensions of 142mm x 101mm x 72mm (5.6" x 4.0" x 2.8") accompanied by a weight of 800 grams (1.76 lbs) whilst the Sony A7R has specifications of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") and a weight of 465 grams (1.03 lbs).
Check the Samsung GX-20 versus Sony A7R in our newest Camera & Lens Size Comparison Tool.
Keep in mind, the weight of an ILC will change dependant on the lens you are employing during that time. Below is a front view proportions comparison of the GX-20 and the A7R.

Considering size and weight, the portability grade of the GX-20 and A7R is 58 and 78 respectively.
Samsung GX-20 vs Sony A7R Sensor Comparison
In many cases, its tough to picture the gap in sensor sizing simply by going through specifications. The photograph here will help offer you a better sense of the sensor sizes in the GX-20 and A7R.
Plainly, both cameras provide different megapixel count and different sensor sizing. The GX-20 because of its smaller sensor is going to make shooting shallower depth of field more challenging and the Sony A7R will provide extra detail as a result of its extra 21 Megapixels. Greater resolution will allow you to crop pics more aggressively. The older GX-20 will be disadvantaged when it comes to sensor technology.
Samsung GX-20 vs Sony A7R Screen and ViewFinder
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Samsung GX-20 vs Sony A7R Specifications
| Samsung GX-20 | Sony Alpha A7R | |
|---|---|---|
| General Information | ||
| Manufacturer | Samsung | Sony |
| Model | Samsung GX-20 | Sony Alpha A7R |
| Type | Advanced DSLR | Pro Mirrorless |
| Launched | 2008-01-24 | 2014-02-13 |
| Physical type | Mid-size SLR | SLR-style mirrorless |
| Sensor Information | ||
| Powered by | - | Bionz X |
| Sensor type | CMOS | CMOS |
| Sensor size | APS-C | Full frame |
| Sensor measurements | 23.4 x 15.6mm | 35.9 x 24mm |
| Sensor surface area | 365.0mm² | 861.6mm² |
| Sensor resolution | 15 megapixels | 36 megapixels |
| Anti aliasing filter | ||
| Aspect ratio | - | 3:2 and 16:9 |
| Highest resolution | 4688 x 3120 | 7360 x 4912 |
| Highest native ISO | 3200 | 25600 |
| Highest boosted ISO | 6400 | - |
| Lowest native ISO | 100 | 100 |
| RAW photos | ||
| Autofocusing | ||
| Focus manually | ||
| AF touch | ||
| AF continuous | ||
| AF single | ||
| Tracking AF | ||
| AF selectice | ||
| AF center weighted | ||
| Multi area AF | ||
| Live view AF | ||
| Face detect focusing | ||
| Contract detect focusing | ||
| Phase detect focusing | ||
| Number of focus points | 11 | 25 |
| Lens | ||
| Lens mount | Pentax KAF2 | Sony E |
| Number of lenses | 151 | 121 |
| Crop factor | 1.5 | 1 |
| Screen | ||
| Type of display | Fixed Type | Tilting |
| Display diagonal | 2.7 inch | 3 inch |
| Resolution of display | 230 thousand dots | 1,230 thousand dots |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Display tech | - | Xtra Fine LCD |
| Viewfinder Information | ||
| Viewfinder type | Optical (pentaprism) | Electronic |
| Viewfinder resolution | - | 2,359 thousand dots |
| Viewfinder coverage | 95% | 100% |
| Viewfinder magnification | 0.64x | 0.71x |
| Features | ||
| Slowest shutter speed | 30 seconds | 30 seconds |
| Maximum shutter speed | 1/4000 seconds | 1/8000 seconds |
| Continuous shooting rate | 3.0fps | 4.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | Yes | Yes |
| Custom WB | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash range | 13.00 m (at ISO 100) | no built-in flash |
| Flash modes | Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless | no built-in flash |
| Hot shoe | ||
| Auto exposure bracketing | ||
| WB bracketing | ||
| Maximum flash synchronize | 1/180 seconds | 1/160 seconds |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Supported video resolutions | - | 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p) |
| Highest video resolution | None | 1920x1080 |
| Video format | - | MPEG-4, AVCHD |
| Microphone support | ||
| Headphone support | ||
| Connectivity | ||
| Wireless | None | Built-In |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | None |
| Physical | ||
| Environment sealing | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 800g (1.76 lbs) | 465g (1.03 lbs) |
| Physical dimensions | 142 x 101 x 72mm (5.6" x 4.0" x 2.8") | 127 x 94 x 48mm (5.0" x 3.7" x 1.9") |
| DXO scores | ||
| DXO All around score | 68 | 95 |
| DXO Color Depth score | 23.1 | 25.6 |
| DXO Dynamic range score | 11.2 | 14.1 |
| DXO Low light score | 714 | 2746 |
| Other | ||
| Battery life | - | 340 shots |
| Battery style | - | Battery Pack |
| Battery model | - | NP-FW50 |
| Self timer | Yes (2 or 10 sec) | Yes (2 or 10 sec; continuous (3 or 5 exposures)) |
| Time lapse feature | With downloadable app | |
| Storage type | SD/MMC/SDHC card | SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo |
| Card slots | One | One |
| Cost at launch | $850 | $1,898 |